Linked from
The 32 pages that link to Fish locomotion, each with the reason it gives.
Caudal finNarrower topic: The caudal fin supplies much of the thrust in many fishes.
Fish finNarrower topic: Fins operate as part of a swimming system that includes the body and tail.
MudskipperNarrower topic: Mudskippers extend fish locomotion onto exposed tidal ground.
Adipose finNarrower topic: The fin’s possible effects are studied through changes in swimming.
BeloniformesNarrower topic: Beloniform swimming and gliding are variations within fish movement.
ReedfishNarrower topic: Reedfish combine body undulation with fin movements when moving over land.
Moorish idolNarrower topic: Its laterally compressed body and fins shape how the Moorish idol swims.